This science fair project idea determines which flower lasts the longest.

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

The objective of this experiment is to evaluate the effects of acid rain on plants.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

The aim of this science fair project is to study the mathematical construct called magic squares and create a unique magic square puzzle.

This science fair project idea outlines the practical applications of particular origami folding techniques.

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.